body {
    background-color: #f2f2f2;
    margin: 0;
}

.separator {
    margin: 0;
    width: 100%;
    height: 10px;
    background-color: #dcdcdc;
}

.rectangle_white {
    background-color: white;
    border-radius: 10px;
    border: 1px solid #dcdcdc;
    padding: 20px;
    min-width: 300px;
    margin: auto;
    overflow: auto;
}

.center_title {
    text-align: center;
    /* 居中文本 */
    font-family: 宋体;
    /* 使用宋体字体 */
    font-size: 30px;
    /* 设置字体大小为30px */
    color: rgb(40, 140, 241);
}

.tips_button {
    color: rgb(40, 140, 241);
    /* 蓝色字体 */
    text-decoration: none;
    /* 去除底部横线 */
    transition: all 0.2s ease-in-out;
    /* 添加过渡效果 */
}

.tips_button:hover {
    text-decoration: underline;
    /* 鼠标悬停时添加底部横线 */
}

.left {
    float: left;
}

.right {
    float: right;
}

.left::after,
.right::after {
    content: '';
    display: block;
    clear: both;
}

.blue_button {
    margin: 10px 0;
    width: 100%;
    border: none;
    border-radius: 5px;
    padding: 6px 10px;
    background-color: rgb(40, 140, 241);
    color: #f2f2f2;
    font-size: 16px;
}

.blue_button:hover {
    cursor: pointer;
    background-color: rgb(82, 156, 230);
}

.input_box {
    margin: 30px auto;
    display: block;
    width: 100%;
    height: 40px;
    padding: 0 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background-color: #fff;
    font-size: 18px;
    color: #333;
    box-sizing: border-box;
    outline: none;
}

.input_box:focus {
    border-color: #0084ff;
    box-shadow: 0 0 0 2px rgba(0, 132, 255, 0.2);
}


.popup {
    text-align: center;
    position: fixed;
    bottom: -5%;
    left: 50%;
    min-width: 300px;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: #ffffff;
    text-align: center;
    padding: 18px;
    border-radius: 5px;
    z-index: 4;
}

.popup-content {
    text-align: center;
    display: block;
}

.popup-text {
    font-size: 28px;
}

.fade-out {
    animation: fadeOut 0.8s forwards;
}

@keyframes fadeOut {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.time-picker {
    position: relative;
    display: inline-block;
}

.time-input {
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
}

.time-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 999;
    background-color: #fff;
    border: 1px solid #ccc;
    border-top: none;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: none;
}

/* 样式化下拉选项 */
.time-dropdown-item {
    padding: 8px 12px;
    cursor: pointer;
}

.time-dropdown-item:hover {
    background-color: #f5f5f5;
}

.small_text {
    font-size: 18px;
}


.bgc_grey {
    display: flex;
    background-color: rgb(51, 51, 51);
}

.y_center {
    align-items: center;
}

.block_text {
    font-size: 40px;
    padding: 0px 4px;
    color: aliceblue;
    font-weight: lighter;
    border: solid 1px rgb(63, 149, 234);
}

.bgc_blue {
    background-color: rgb(63, 149, 234);
}

.right_container {
    display: flex;
    justify-content: flex-end;
    flex-grow: 1;
}

.text_button {
    margin: 0 40px;
    font-size: 20px;
    font-weight: normal;
    color: aliceblue;
}

.text_button:hover {
    cursor: pointer;
    text-decoration: underline;
}

.floating-button {
    position: fixed;
    bottom: 20px;
    /* 距离底部20px */
    height: 40px;
    /* 高度40px */
    width: 100px;
    /* 宽度100px */
    background-color: rgb(63, 149, 234);
    color: #fff;
    /* 文字颜色为白色 */
    text-align: center;
    /* 文字居中 */
    line-height: 40px;
    /* 行高等于高度 */
    font-size: 16px;
    /* 文字大小为16px */
    border-radius: 3px;
    /* 边框圆角为20px */
    border: none;
    cursor: pointer;
    /* 鼠标样式为手型 */
}

.floating-button:hover {
    background-color: rgb(82, 156, 230);
}

.floating-button-left {
    left: 20px;
    /* 居左 */
}

.floating-button-right {
    right: 10px;
    /* 居右 */
}

.info_rect {
    margin: 180px auto;
}